Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
The entire sole of one of the shoes came off after two days of wear. I only noticed when my 4yo daughter nearly skinned her knee as she slipped whilst walking around on the LED mechanism. Terrible quality from a brand that I expected much more from. Amazon were great with the return.